I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
lientery linter lintier lender lander launder laundry
lientery wintery pantry fainter hunter runtier reinter rentier jauntier winter gantry reenter pointer punter gauntry linter haunter canter inter counter mounter chunter minter chantry wintry paintier uniter tindery saunter santera tenter minuter daunter vaunter sinter venter hinter century quainter jointer lintier keynoter ranter pointier reentry country santero sentry reuniter renter center noter cindery cointer banter entry gaunter nitery gentry daintier enter taunter bindery tentier mintier bunter wanter painter montero entera niter chanter tinter chaunter shunter
lent lint glinty glint client flinty flint elint aliened blent alienate linty lento lenity lenite leant plenty